David D. O’Keefe (IMAGE) Sanford Burnham Prebys Caption David D. O’Keefe, PhD, is vice president of research development at Sanford Burnham Prebys. Credit Sanford Burnham Prebys Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.